Monday, 30 April 2018

Coronet® achieves Guinness World Record title at Baselworld 2018

Global record for 'Most diamonds set on a handbag' with nearly 10,000 embedded in a Coca Cola-inspired accessory, has been confirmed.

Coronet® successfully achieved the Guinness World Records title in the main hall of Baselworld 2018 jewellery show. This Coca Cola bottle-shaped diamond handbag contains 9,888 natural diamonds, weighing 120 carats, and took 15 highly skilled craftsmen nearly 100 days to complete
This is the third time the jewellers has earned a Guinness World Records title following two other successful attempts in 2015 and 2016 - the Most valuable guitar (with 400 carats of diamonds) worth $2 million and Most jewels on a guitar (16,033 Swarovski gemstones)

Saturday, 28 April 2018

Marra Mamba Tiger's Eye

Mara Mamba Tiger Eye is a rare variety of Tiger Eye found only in the Hamersley Ranges of the Pilbara region in Western Australia. Only two deposits have ever produced “true” Mara Mamba, a rare type with reds, blues, yellow, gold and greens. In 2005, David Vaughan discovered one of the largest tiger eye specimens ever at Marra Mamba.
Mara Mamba is extremely old, forming when the Earth was very young and had little to no oxygen in its atmosphere. Oxygen producing photosynthetic bacteria evolved more than 2.7 billion years ago, and gave off oxygen as a waste product. This oxygen built up in the atmosphere and dissolved in the sea water. When iron, produced mainly from huge submarine volcanoes came in contact with this oxygen, it precipitated as iron oxide in the sea floor and resulted in iron-rich and silica-rich bands, called banded iron formations (BIFs).
Gems are usually given a cabochon cut to best display their chatoyance. (cat's eye effect)

Friday, 27 April 2018

Baselworld 2018

For five days last month, the world’s most prestigious watch and jewelry brands came together in Basel, Switzerland, to unveil their most dazzling creations, showcasing their mastery of high jewelry-making and an unrivaled technical prowess. Jewelry watches were some of the most riveting pieces at Baselworld 2018, combining contemporary interpretations of the art of watchmaking with superlative jewelry designs.
Chopard’s “Secret Watch”

Thursday, 26 April 2018

Diamonds, Rubies, Sapphires and signed jewels top Bonhams sale

Rubies and sapphires of exceptional provenance and signed jewels were among the top lots at Bonhams New York. Top lot was a 10-carat round brilliant-cut diamond that sold for $492,000.

An Art Deco ruby and diamond bracelet by Cartier, circa 1935, sold for $324,500, nearly tripling its high estimate of $120,000.
Centered with a 40.07-carat cushion-shaped untreated Ceylon (Sri Lankan) sapphire, a necklace made $312,500.

A sapphire and diamond ring sold for $175,000, topping its $120,000 high estimate. The 9.85-carat emerald-cut Kashmir sapphire is untreated.
A ruby and diamond ring by Mermod & Jaccard sold $131,250 against a high estimate of $120,000. The ring features a 3.24-carat antique cushion-shaped ruby.

Tuesday, 24 April 2018

Michigan's state gem : Chlorastrolite

Michigan's state gem is found in one place -- and you won't find it anywhere else. Chlorastrolite is a variety of the mineral pumpellyite, and it is exclusively found along the Keweenaw Peninsula and throughout the Isle Royale archipelago -- Michigan's most remote national park. Commonly called Isle Royale Greenstone, ancient lava flows cooled into basalt. Within that basalt were small pockets of empty space left behind from gasses in the lava -- and that is where chlorastrolite eventually formed.
Chlorastrolite is difficult to find because of its size. Large pieces are extremely rare.

Saturday, 21 April 2018

3.5-Carat Blue Diamond makes $6.7 Million

Sotheby’s held three jewelry auctions selling more than 400 lots that fetched more than $34 million with 83.3% of all lots sold. The star was a 3.47-carat fancy intense blue diamond that sold for $6.66 million, smashing its $2.5 million high estimate.

A 6.33-carat unmounted emerald-cut emerald from Colombia that sold for nearly $1.1 million ($172,986 per carat), nearly doubling its $600,000 high estimate.
An 11.24-carat cushion-cut Kashmir sapphire mounted on a diamond ring that sold for $999,000 ($88,879 per carat), doubling its high estimate.

A 7-carat square-cut fancy intense pink diamond mounted on a ring with an estimate of $4.2 million - $5.2 million.

Friday, 20 April 2018

Bonhams Lapidary Works of Art Gemstones, Minerals and Natural History

Rhodolite Garnet, Malawi, 30.06 carats. US$ 6,500 - 8,500Bonhams Lapidary Works of Art Gemstones, Minerals and Natural History is 16 May 2018 in Los Angeles.
Marra Mamba Tiger's Eye Bowl. Mount Brockman Station, Western Australia. US$ 6,000 - 8,000
Orange-Red Spessartite Garnet. 15.96 carats. US$ 1,500 - 2,000
Spessartite Garnet. Mozambique. 15.74 carats. US$ 8,000 - 10,000Large Demantoid Garnet. Ural Mountains, Russia. 4.62 carats. US$ 25,000 - 30,000Two Conch Pearls. Strombus gigas or "Queen Conch". Caribbean Sea. 11.32 carats and 9.15 carats. US$ 16,000 - 20,000
Exceptional Peridot. Pakistan. 47.83 carats. US$ 7,000 - 9,000Red Rhodochrosite. South Africa. 15.16 carats. US$ 8,000 - 10,000Ruby Parrots on Spinel and Pargasite base by Peter Mueller. US$ 20,000 - 30,000

Thursday, 19 April 2018

Tiffany & Co - the Blue Book

Tiffany & Co was founded by Charles Lewis Tiffany and John B. Young in New York City in 1837 as a "stationery and fancy goods emporium", the store initially sold a wide variety of stationery items, and operated as "Tiffany, Young and Ellis" in Lower Manhattan.

The name was shortened to Tiffany & Company in 1853 when Charles Tiffany took control and established the firm's emphasis on jewelry.
Tiffany & Co. operates jewelry and specialty retail stores and manufactures products. The Company operates retail stores and boutiques in the Americas, Asia-Pacific and Europe. The Company’s principal product category is jewelry, which represented 90% of worldwide sales.

The Company also sells timepieces, leather goods, sterling silver goods, china, crystal, stationery, fragrances and accessories, which represented 8% of worldwide sales in 2012.

For over 175 years, Tiffany & Co. has produced world-renowned jewelry collections.
Tiffany’s celebrated Blue Book is an annual publication that showcases the latest and most spectacular jewels, and has been arriving in customers’ mail boxes since 1845. It is the first mail order catalogue in the U.S.